Need help re-wiring fans

[FORDification]

I'm finishing up the build of my new rig, which consists of a Sabertooth P67 motherboard, which has provisions for a mobo-mounted 50mm assist fan. Since I'm installing all LED fans in my case, I was wanting to find a matching 50mm LED assist fan to use, but I had no luck finding one. However, I did run across something that might work.

I got this laptop cooler with two 50mm LED fans:

Considering it was only $9, I figured I'd give it a try and see if I could make the fans work. The laptop cooler arrived in the mail today, and here are a few pics I took (click to enlarge):



(First of all....PINK??? LOL) Anyway, as you can see, the fans are a two-wire version, whereas the motherboard port for this assist fan is a 3-pin, so that it can be monitored and regulated. I realize that hooking it up as a two-wire means it'll be running full blast at all times and I won't be able to monitor it's RPM, but I'm fine with that, as these fans are pretty quiet. So...the question is, can I simply snip the USB connection off the fans on this cooler and wire in a three-pin connector (where one pin socket would be unused)? These fans each have a red and a white wire, whereas the assist fan I'm currently using has red, yellow and black. So which two wires from the three-pin mobo connector do I connect to which wires on this fan?

Thanks for the help!

 

[Conumdrum]

USB is 5 VDC, not 12 VDC. So first your going to have to use the 5VDC from your PSU to power the fans.

white is ground (-), red is hot (+). You can get 5 VDC off a standard molex if you know what pins to use.

But you can't connect them to the Mobo, that is 12 VDC output.

 

[FORDification]

Ah, OK....thanks. So wouldn't hooking it up to 12V simply make it spin faster, or would it be be too much power for the fan?

I have a spare (older) computer, I wonder if I should test it out on that one first on a 12V connection for a while and make sure it works and won't fry.

 

[Conumdrum]

Smoke. No workie.

Yea test first 24 hours.